D30 lens compatibility
OK, great. I also just found this from the Lonestardigital review of the D30:
Compact, lightweight EOS style digital single-lens reflex camera, designed and built by Canon. Uses any & all Canon EF compatible lenses, including Canon's image stabilization models.
Before ordering the Sigma 18-50 OS, I also emailed Sigma and am awaiting an answere. Will post it here for any future interest
Thanks for your replies: